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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
1da177e4 LT |
3 | * Copyright (C) 2000 Tilmann Bitterberg |
4 | * (tilmann@bitterberg.de) | |
5 | * | |
6 | * RTAS (Runtime Abstraction Services) stuff | |
7 | * Intention is to provide a clean user interface | |
8 | * to use the RTAS. | |
9 | * | |
10 | * TODO: | |
11 | * Split off a header file and maybe move it to a different | |
12 | * location. Write Documentation on what the /proc/rtas/ entries | |
13 | * actually do. | |
14 | */ | |
15 | ||
16 | #include <linux/errno.h> | |
17 | #include <linux/sched.h> | |
18 | #include <linux/proc_fs.h> | |
19 | #include <linux/stat.h> | |
20 | #include <linux/ctype.h> | |
21 | #include <linux/time.h> | |
22 | #include <linux/string.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/seq_file.h> | |
25 | #include <linux/bitops.h> | |
143a1dec | 26 | #include <linux/rtc.h> |
e6f6390a | 27 | #include <linux/of.h> |
1da177e4 | 28 | |
7c0f6ba6 | 29 | #include <linux/uaccess.h> |
1da177e4 LT |
30 | #include <asm/processor.h> |
31 | #include <asm/io.h> | |
1da177e4 LT |
32 | #include <asm/rtas.h> |
33 | #include <asm/machdep.h> /* for ppc_md */ | |
34 | #include <asm/time.h> | |
1da177e4 LT |
35 | |
36 | /* Token for Sensors */ | |
37 | #define KEY_SWITCH 0x0001 | |
38 | #define ENCLOSURE_SWITCH 0x0002 | |
39 | #define THERMAL_SENSOR 0x0003 | |
40 | #define LID_STATUS 0x0004 | |
41 | #define POWER_SOURCE 0x0005 | |
42 | #define BATTERY_VOLTAGE 0x0006 | |
43 | #define BATTERY_REMAINING 0x0007 | |
44 | #define BATTERY_PERCENTAGE 0x0008 | |
45 | #define EPOW_SENSOR 0x0009 | |
46 | #define BATTERY_CYCLESTATE 0x000a | |
47 | #define BATTERY_CHARGING 0x000b | |
48 | ||
49 | /* IBM specific sensors */ | |
50 | #define IBM_SURVEILLANCE 0x2328 /* 9000 */ | |
51 | #define IBM_FANRPM 0x2329 /* 9001 */ | |
52 | #define IBM_VOLTAGE 0x232a /* 9002 */ | |
53 | #define IBM_DRCONNECTOR 0x232b /* 9003 */ | |
54 | #define IBM_POWERSUPPLY 0x232c /* 9004 */ | |
55 | ||
56 | /* Status return values */ | |
57 | #define SENSOR_CRITICAL_HIGH 13 | |
58 | #define SENSOR_WARNING_HIGH 12 | |
59 | #define SENSOR_NORMAL 11 | |
60 | #define SENSOR_WARNING_LOW 10 | |
61 | #define SENSOR_CRITICAL_LOW 9 | |
62 | #define SENSOR_SUCCESS 0 | |
63 | #define SENSOR_HW_ERROR -1 | |
64 | #define SENSOR_BUSY -2 | |
65 | #define SENSOR_NOT_EXIST -3 | |
66 | #define SENSOR_DR_ENTITY -9000 | |
67 | ||
68 | /* Location Codes */ | |
69 | #define LOC_SCSI_DEV_ADDR 'A' | |
70 | #define LOC_SCSI_DEV_LOC 'B' | |
71 | #define LOC_CPU 'C' | |
72 | #define LOC_DISKETTE 'D' | |
73 | #define LOC_ETHERNET 'E' | |
74 | #define LOC_FAN 'F' | |
75 | #define LOC_GRAPHICS 'G' | |
76 | /* reserved / not used 'H' */ | |
77 | #define LOC_IO_ADAPTER 'I' | |
78 | /* reserved / not used 'J' */ | |
79 | #define LOC_KEYBOARD 'K' | |
80 | #define LOC_LCD 'L' | |
81 | #define LOC_MEMORY 'M' | |
82 | #define LOC_NV_MEMORY 'N' | |
83 | #define LOC_MOUSE 'O' | |
84 | #define LOC_PLANAR 'P' | |
85 | #define LOC_OTHER_IO 'Q' | |
86 | #define LOC_PARALLEL 'R' | |
87 | #define LOC_SERIAL 'S' | |
88 | #define LOC_DEAD_RING 'T' | |
89 | #define LOC_RACKMOUNTED 'U' /* for _u_nit is rack mounted */ | |
90 | #define LOC_VOLTAGE 'V' | |
91 | #define LOC_SWITCH_ADAPTER 'W' | |
92 | #define LOC_OTHER 'X' | |
93 | #define LOC_FIRMWARE 'Y' | |
94 | #define LOC_SCSI 'Z' | |
95 | ||
96 | /* Tokens for indicators */ | |
97 | #define TONE_FREQUENCY 0x0001 /* 0 - 1000 (HZ)*/ | |
98 | #define TONE_VOLUME 0x0002 /* 0 - 100 (%) */ | |
99 | #define SYSTEM_POWER_STATE 0x0003 | |
100 | #define WARNING_LIGHT 0x0004 | |
101 | #define DISK_ACTIVITY_LIGHT 0x0005 | |
102 | #define HEX_DISPLAY_UNIT 0x0006 | |
103 | #define BATTERY_WARNING_TIME 0x0007 | |
104 | #define CONDITION_CYCLE_REQUEST 0x0008 | |
105 | #define SURVEILLANCE_INDICATOR 0x2328 /* 9000 */ | |
106 | #define DR_ACTION 0x2329 /* 9001 */ | |
107 | #define DR_INDICATOR 0x232a /* 9002 */ | |
108 | /* 9003 - 9004: Vendor specific */ | |
109 | /* 9006 - 9999: Vendor specific */ | |
110 | ||
111 | /* other */ | |
112 | #define MAX_SENSORS 17 /* I only know of 17 sensors */ | |
113 | #define MAX_LINELENGTH 256 | |
114 | #define SENSOR_PREFIX "ibm,sensor-" | |
115 | #define cel_to_fahr(x) ((x*9/5)+32) | |
116 | ||
1da177e4 LT |
117 | struct individual_sensor { |
118 | unsigned int token; | |
119 | unsigned int quant; | |
120 | }; | |
121 | ||
122 | struct rtas_sensors { | |
123 | struct individual_sensor sensor[MAX_SENSORS]; | |
124 | unsigned int quant; | |
125 | }; | |
126 | ||
ecaf5fa0 AB |
127 | /* Globals */ |
128 | static struct rtas_sensors sensors; | |
129 | static struct device_node *rtas_node = NULL; | |
130 | static unsigned long power_on_time = 0; /* Save the time the user set */ | |
131 | static char progress_led[MAX_LINELENGTH]; | |
132 | ||
133 | static unsigned long rtas_tone_frequency = 1000; | |
134 | static unsigned long rtas_tone_volume = 0; | |
135 | ||
1da177e4 LT |
136 | /* ****************************************************************** */ |
137 | /* Declarations */ | |
138 | static int ppc_rtas_sensors_show(struct seq_file *m, void *v); | |
139 | static int ppc_rtas_clock_show(struct seq_file *m, void *v); | |
140 | static ssize_t ppc_rtas_clock_write(struct file *file, | |
141 | const char __user *buf, size_t count, loff_t *ppos); | |
142 | static int ppc_rtas_progress_show(struct seq_file *m, void *v); | |
143 | static ssize_t ppc_rtas_progress_write(struct file *file, | |
144 | const char __user *buf, size_t count, loff_t *ppos); | |
145 | static int ppc_rtas_poweron_show(struct seq_file *m, void *v); | |
146 | static ssize_t ppc_rtas_poweron_write(struct file *file, | |
147 | const char __user *buf, size_t count, loff_t *ppos); | |
148 | ||
149 | static ssize_t ppc_rtas_tone_freq_write(struct file *file, | |
150 | const char __user *buf, size_t count, loff_t *ppos); | |
151 | static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v); | |
152 | static ssize_t ppc_rtas_tone_volume_write(struct file *file, | |
153 | const char __user *buf, size_t count, loff_t *ppos); | |
154 | static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v); | |
155 | static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v); | |
156 | ||
1da177e4 LT |
157 | static int poweron_open(struct inode *inode, struct file *file) |
158 | { | |
159 | return single_open(file, ppc_rtas_poweron_show, NULL); | |
160 | } | |
161 | ||
97a32539 AD |
162 | static const struct proc_ops ppc_rtas_poweron_proc_ops = { |
163 | .proc_open = poweron_open, | |
164 | .proc_read = seq_read, | |
165 | .proc_lseek = seq_lseek, | |
166 | .proc_write = ppc_rtas_poweron_write, | |
167 | .proc_release = single_release, | |
1da177e4 LT |
168 | }; |
169 | ||
170 | static int progress_open(struct inode *inode, struct file *file) | |
171 | { | |
172 | return single_open(file, ppc_rtas_progress_show, NULL); | |
173 | } | |
174 | ||
97a32539 AD |
175 | static const struct proc_ops ppc_rtas_progress_proc_ops = { |
176 | .proc_open = progress_open, | |
177 | .proc_read = seq_read, | |
178 | .proc_lseek = seq_lseek, | |
179 | .proc_write = ppc_rtas_progress_write, | |
180 | .proc_release = single_release, | |
1da177e4 LT |
181 | }; |
182 | ||
183 | static int clock_open(struct inode *inode, struct file *file) | |
184 | { | |
185 | return single_open(file, ppc_rtas_clock_show, NULL); | |
186 | } | |
187 | ||
97a32539 AD |
188 | static const struct proc_ops ppc_rtas_clock_proc_ops = { |
189 | .proc_open = clock_open, | |
190 | .proc_read = seq_read, | |
191 | .proc_lseek = seq_lseek, | |
192 | .proc_write = ppc_rtas_clock_write, | |
193 | .proc_release = single_release, | |
1da177e4 LT |
194 | }; |
195 | ||
196 | static int tone_freq_open(struct inode *inode, struct file *file) | |
197 | { | |
198 | return single_open(file, ppc_rtas_tone_freq_show, NULL); | |
199 | } | |
200 | ||
97a32539 AD |
201 | static const struct proc_ops ppc_rtas_tone_freq_proc_ops = { |
202 | .proc_open = tone_freq_open, | |
203 | .proc_read = seq_read, | |
204 | .proc_lseek = seq_lseek, | |
205 | .proc_write = ppc_rtas_tone_freq_write, | |
206 | .proc_release = single_release, | |
1da177e4 LT |
207 | }; |
208 | ||
209 | static int tone_volume_open(struct inode *inode, struct file *file) | |
210 | { | |
211 | return single_open(file, ppc_rtas_tone_volume_show, NULL); | |
212 | } | |
213 | ||
97a32539 AD |
214 | static const struct proc_ops ppc_rtas_tone_volume_proc_ops = { |
215 | .proc_open = tone_volume_open, | |
216 | .proc_read = seq_read, | |
217 | .proc_lseek = seq_lseek, | |
218 | .proc_write = ppc_rtas_tone_volume_write, | |
219 | .proc_release = single_release, | |
1da177e4 LT |
220 | }; |
221 | ||
1da177e4 LT |
222 | static int ppc_rtas_find_all_sensors(void); |
223 | static void ppc_rtas_process_sensor(struct seq_file *m, | |
a7f67bdf | 224 | struct individual_sensor *s, int state, int error, const char *loc); |
1da177e4 LT |
225 | static char *ppc_rtas_process_error(int error); |
226 | static void get_location_code(struct seq_file *m, | |
a7f67bdf JK |
227 | struct individual_sensor *s, const char *loc); |
228 | static void check_location_string(struct seq_file *m, const char *c); | |
229 | static void check_location(struct seq_file *m, const char *c); | |
1da177e4 LT |
230 | |
231 | static int __init proc_rtas_init(void) | |
232 | { | |
e8222502 | 233 | if (!machine_is(pseries)) |
49c28e4e | 234 | return -ENODEV; |
1da177e4 LT |
235 | |
236 | rtas_node = of_find_node_by_name(NULL, "rtas"); | |
237 | if (rtas_node == NULL) | |
49c28e4e | 238 | return -ENODEV; |
1da177e4 | 239 | |
57ad583f | 240 | proc_create("powerpc/rtas/progress", 0644, NULL, |
97a32539 | 241 | &ppc_rtas_progress_proc_ops); |
57ad583f | 242 | proc_create("powerpc/rtas/clock", 0644, NULL, |
97a32539 | 243 | &ppc_rtas_clock_proc_ops); |
57ad583f | 244 | proc_create("powerpc/rtas/poweron", 0644, NULL, |
97a32539 | 245 | &ppc_rtas_poweron_proc_ops); |
3f3942ac CH |
246 | proc_create_single("powerpc/rtas/sensors", 0444, NULL, |
247 | ppc_rtas_sensors_show); | |
57ad583f | 248 | proc_create("powerpc/rtas/frequency", 0644, NULL, |
97a32539 | 249 | &ppc_rtas_tone_freq_proc_ops); |
57ad583f | 250 | proc_create("powerpc/rtas/volume", 0644, NULL, |
97a32539 | 251 | &ppc_rtas_tone_volume_proc_ops); |
3f3942ac CH |
252 | proc_create_single("powerpc/rtas/rmo_buffer", 0400, NULL, |
253 | ppc_rtas_rmo_buf_show); | |
1da177e4 LT |
254 | return 0; |
255 | } | |
256 | ||
257 | __initcall(proc_rtas_init); | |
258 | ||
2dc20f45 | 259 | static int parse_number(const char __user *p, size_t count, u64 *val) |
1da177e4 LT |
260 | { |
261 | char buf[40]; | |
1da177e4 LT |
262 | |
263 | if (count > 39) | |
264 | return -EINVAL; | |
265 | ||
266 | if (copy_from_user(buf, p, count)) | |
267 | return -EFAULT; | |
268 | ||
269 | buf[count] = 0; | |
270 | ||
08d61b46 | 271 | return kstrtoull(buf, 10, val); |
1da177e4 LT |
272 | } |
273 | ||
274 | /* ****************************************************************** */ | |
275 | /* POWER-ON-TIME */ | |
276 | /* ****************************************************************** */ | |
277 | static ssize_t ppc_rtas_poweron_write(struct file *file, | |
278 | const char __user *buf, size_t count, loff_t *ppos) | |
279 | { | |
280 | struct rtc_time tm; | |
2dc20f45 | 281 | time64_t nowtime; |
1da177e4 LT |
282 | int error = parse_number(buf, count, &nowtime); |
283 | if (error) | |
284 | return error; | |
285 | ||
286 | power_on_time = nowtime; /* save the time */ | |
287 | ||
2dc20f45 | 288 | rtc_time64_to_tm(nowtime, &tm); |
1da177e4 | 289 | |
08273c9f NL |
290 | error = rtas_call(rtas_function_token(RTAS_FN_SET_TIME_FOR_POWER_ON), 7, 1, NULL, |
291 | tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, | |
292 | tm.tm_hour, tm.tm_min, tm.tm_sec, 0 /* nano */); | |
1da177e4 LT |
293 | if (error) |
294 | printk(KERN_WARNING "error: setting poweron time returned: %s\n", | |
295 | ppc_rtas_process_error(error)); | |
296 | return count; | |
297 | } | |
298 | /* ****************************************************************** */ | |
299 | static int ppc_rtas_poweron_show(struct seq_file *m, void *v) | |
300 | { | |
301 | if (power_on_time == 0) | |
302 | seq_printf(m, "Power on time not set\n"); | |
303 | else | |
304 | seq_printf(m, "%lu\n",power_on_time); | |
305 | return 0; | |
306 | } | |
307 | ||
308 | /* ****************************************************************** */ | |
309 | /* PROGRESS */ | |
310 | /* ****************************************************************** */ | |
311 | static ssize_t ppc_rtas_progress_write(struct file *file, | |
312 | const char __user *buf, size_t count, loff_t *ppos) | |
313 | { | |
314 | unsigned long hex; | |
315 | ||
316 | if (count >= MAX_LINELENGTH) | |
317 | count = MAX_LINELENGTH -1; | |
318 | if (copy_from_user(progress_led, buf, count)) { /* save the string */ | |
319 | return -EFAULT; | |
320 | } | |
321 | progress_led[count] = 0; | |
322 | ||
323 | /* Lets see if the user passed hexdigits */ | |
324 | hex = simple_strtoul(progress_led, NULL, 10); | |
325 | ||
6566c6f1 | 326 | rtas_progress ((char *)progress_led, hex); |
1da177e4 LT |
327 | return count; |
328 | ||
329 | /* clear the line */ | |
6566c6f1 | 330 | /* rtas_progress(" ", 0xffff);*/ |
1da177e4 LT |
331 | } |
332 | /* ****************************************************************** */ | |
333 | static int ppc_rtas_progress_show(struct seq_file *m, void *v) | |
334 | { | |
9a6b5070 | 335 | if (progress_led[0]) |
1da177e4 LT |
336 | seq_printf(m, "%s\n", progress_led); |
337 | return 0; | |
338 | } | |
339 | ||
340 | /* ****************************************************************** */ | |
341 | /* CLOCK */ | |
342 | /* ****************************************************************** */ | |
343 | static ssize_t ppc_rtas_clock_write(struct file *file, | |
344 | const char __user *buf, size_t count, loff_t *ppos) | |
345 | { | |
346 | struct rtc_time tm; | |
2dc20f45 | 347 | time64_t nowtime; |
1da177e4 LT |
348 | int error = parse_number(buf, count, &nowtime); |
349 | if (error) | |
350 | return error; | |
351 | ||
2dc20f45 | 352 | rtc_time64_to_tm(nowtime, &tm); |
08273c9f NL |
353 | error = rtas_call(rtas_function_token(RTAS_FN_SET_TIME_OF_DAY), 7, 1, NULL, |
354 | tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, | |
355 | tm.tm_hour, tm.tm_min, tm.tm_sec, 0); | |
1da177e4 LT |
356 | if (error) |
357 | printk(KERN_WARNING "error: setting the clock returned: %s\n", | |
358 | ppc_rtas_process_error(error)); | |
359 | return count; | |
360 | } | |
361 | /* ****************************************************************** */ | |
362 | static int ppc_rtas_clock_show(struct seq_file *m, void *v) | |
363 | { | |
364 | int ret[8]; | |
08273c9f | 365 | int error = rtas_call(rtas_function_token(RTAS_FN_GET_TIME_OF_DAY), 0, 8, ret); |
1da177e4 LT |
366 | |
367 | if (error) { | |
368 | printk(KERN_WARNING "error: reading the clock returned: %s\n", | |
369 | ppc_rtas_process_error(error)); | |
370 | seq_printf(m, "0"); | |
371 | } else { | |
372 | unsigned int year, mon, day, hour, min, sec; | |
373 | year = ret[0]; mon = ret[1]; day = ret[2]; | |
374 | hour = ret[3]; min = ret[4]; sec = ret[5]; | |
2dc20f45 AB |
375 | seq_printf(m, "%lld\n", |
376 | mktime64(year, mon, day, hour, min, sec)); | |
1da177e4 LT |
377 | } |
378 | return 0; | |
379 | } | |
380 | ||
381 | /* ****************************************************************** */ | |
382 | /* SENSOR STUFF */ | |
383 | /* ****************************************************************** */ | |
384 | static int ppc_rtas_sensors_show(struct seq_file *m, void *v) | |
385 | { | |
386 | int i,j; | |
387 | int state, error; | |
08273c9f | 388 | int get_sensor_state = rtas_function_token(RTAS_FN_GET_SENSOR_STATE); |
1da177e4 LT |
389 | |
390 | seq_printf(m, "RTAS (RunTime Abstraction Services) Sensor Information\n"); | |
391 | seq_printf(m, "Sensor\t\tValue\t\tCondition\tLocation\n"); | |
392 | seq_printf(m, "********************************************************\n"); | |
393 | ||
394 | if (ppc_rtas_find_all_sensors() != 0) { | |
395 | seq_printf(m, "\nNo sensors are available\n"); | |
396 | return 0; | |
397 | } | |
398 | ||
399 | for (i=0; i<sensors.quant; i++) { | |
400 | struct individual_sensor *p = &sensors.sensor[i]; | |
401 | char rstr[64]; | |
a7f67bdf | 402 | const char *loc; |
1da177e4 LT |
403 | int llen, offs; |
404 | ||
405 | sprintf (rstr, SENSOR_PREFIX"%04d", p->token); | |
e2eb6392 | 406 | loc = of_get_property(rtas_node, rstr, &llen); |
1da177e4 LT |
407 | |
408 | /* A sensor may have multiple instances */ | |
409 | for (j = 0, offs = 0; j <= p->quant; j++) { | |
410 | error = rtas_call(get_sensor_state, 2, 2, &state, | |
411 | p->token, j); | |
412 | ||
413 | ppc_rtas_process_sensor(m, p, state, error, loc); | |
414 | seq_putc(m, '\n'); | |
415 | if (loc) { | |
416 | offs += strlen(loc) + 1; | |
417 | loc += strlen(loc) + 1; | |
418 | if (offs >= llen) | |
419 | loc = NULL; | |
420 | } | |
421 | } | |
422 | } | |
423 | return 0; | |
424 | } | |
425 | ||
426 | /* ****************************************************************** */ | |
427 | ||
428 | static int ppc_rtas_find_all_sensors(void) | |
429 | { | |
a7f67bdf | 430 | const unsigned int *utmp; |
1da177e4 LT |
431 | int len, i; |
432 | ||
e2eb6392 | 433 | utmp = of_get_property(rtas_node, "rtas-sensors", &len); |
1da177e4 LT |
434 | if (utmp == NULL) { |
435 | printk (KERN_ERR "error: could not get rtas-sensors\n"); | |
436 | return 1; | |
437 | } | |
438 | ||
439 | sensors.quant = len / 8; /* int + int */ | |
440 | ||
441 | for (i=0; i<sensors.quant; i++) { | |
442 | sensors.sensor[i].token = *utmp++; | |
443 | sensors.sensor[i].quant = *utmp++; | |
444 | } | |
445 | return 0; | |
446 | } | |
447 | ||
448 | /* ****************************************************************** */ | |
449 | /* | |
450 | * Builds a string of what rtas returned | |
451 | */ | |
452 | static char *ppc_rtas_process_error(int error) | |
453 | { | |
454 | switch (error) { | |
455 | case SENSOR_CRITICAL_HIGH: | |
456 | return "(critical high)"; | |
457 | case SENSOR_WARNING_HIGH: | |
458 | return "(warning high)"; | |
459 | case SENSOR_NORMAL: | |
460 | return "(normal)"; | |
461 | case SENSOR_WARNING_LOW: | |
462 | return "(warning low)"; | |
463 | case SENSOR_CRITICAL_LOW: | |
464 | return "(critical low)"; | |
465 | case SENSOR_SUCCESS: | |
466 | return "(read ok)"; | |
467 | case SENSOR_HW_ERROR: | |
468 | return "(hardware error)"; | |
469 | case SENSOR_BUSY: | |
470 | return "(busy)"; | |
471 | case SENSOR_NOT_EXIST: | |
472 | return "(non existent)"; | |
473 | case SENSOR_DR_ENTITY: | |
474 | return "(dr entity removed)"; | |
475 | default: | |
476 | return "(UNKNOWN)"; | |
477 | } | |
478 | } | |
479 | ||
480 | /* ****************************************************************** */ | |
481 | /* | |
482 | * Builds a string out of what the sensor said | |
483 | */ | |
484 | ||
485 | static void ppc_rtas_process_sensor(struct seq_file *m, | |
a7f67bdf | 486 | struct individual_sensor *s, int state, int error, const char *loc) |
1da177e4 LT |
487 | { |
488 | /* Defined return vales */ | |
489 | const char * key_switch[] = { "Off\t", "Normal\t", "Secure\t", | |
490 | "Maintenance" }; | |
491 | const char * enclosure_switch[] = { "Closed", "Open" }; | |
492 | const char * lid_status[] = { " ", "Open", "Closed" }; | |
493 | const char * power_source[] = { "AC\t", "Battery", | |
494 | "AC & Battery" }; | |
495 | const char * battery_remaining[] = { "Very Low", "Low", "Mid", "High" }; | |
496 | const char * epow_sensor[] = { | |
497 | "EPOW Reset", "Cooling warning", "Power warning", | |
498 | "System shutdown", "System halt", "EPOW main enclosure", | |
499 | "EPOW power off" }; | |
500 | const char * battery_cyclestate[] = { "None", "In progress", | |
501 | "Requested" }; | |
ba01b058 | 502 | const char * battery_charging[] = { "Charging", "Discharging", |
1da177e4 LT |
503 | "No current flow" }; |
504 | const char * ibm_drconnector[] = { "Empty", "Present", "Unusable", | |
505 | "Exchange" }; | |
506 | ||
507 | int have_strings = 0; | |
508 | int num_states = 0; | |
509 | int temperature = 0; | |
510 | int unknown = 0; | |
511 | ||
512 | /* What kind of sensor do we have here? */ | |
513 | ||
514 | switch (s->token) { | |
515 | case KEY_SWITCH: | |
516 | seq_printf(m, "Key switch:\t"); | |
517 | num_states = sizeof(key_switch) / sizeof(char *); | |
518 | if (state < num_states) { | |
519 | seq_printf(m, "%s\t", key_switch[state]); | |
520 | have_strings = 1; | |
521 | } | |
522 | break; | |
523 | case ENCLOSURE_SWITCH: | |
524 | seq_printf(m, "Enclosure switch:\t"); | |
525 | num_states = sizeof(enclosure_switch) / sizeof(char *); | |
526 | if (state < num_states) { | |
527 | seq_printf(m, "%s\t", | |
528 | enclosure_switch[state]); | |
529 | have_strings = 1; | |
530 | } | |
531 | break; | |
532 | case THERMAL_SENSOR: | |
533 | seq_printf(m, "Temp. (C/F):\t"); | |
534 | temperature = 1; | |
535 | break; | |
536 | case LID_STATUS: | |
537 | seq_printf(m, "Lid status:\t"); | |
538 | num_states = sizeof(lid_status) / sizeof(char *); | |
539 | if (state < num_states) { | |
540 | seq_printf(m, "%s\t", lid_status[state]); | |
541 | have_strings = 1; | |
542 | } | |
543 | break; | |
544 | case POWER_SOURCE: | |
545 | seq_printf(m, "Power source:\t"); | |
546 | num_states = sizeof(power_source) / sizeof(char *); | |
547 | if (state < num_states) { | |
548 | seq_printf(m, "%s\t", | |
549 | power_source[state]); | |
550 | have_strings = 1; | |
551 | } | |
552 | break; | |
553 | case BATTERY_VOLTAGE: | |
554 | seq_printf(m, "Battery voltage:\t"); | |
555 | break; | |
556 | case BATTERY_REMAINING: | |
557 | seq_printf(m, "Battery remaining:\t"); | |
558 | num_states = sizeof(battery_remaining) / sizeof(char *); | |
559 | if (state < num_states) | |
560 | { | |
561 | seq_printf(m, "%s\t", | |
562 | battery_remaining[state]); | |
563 | have_strings = 1; | |
564 | } | |
565 | break; | |
566 | case BATTERY_PERCENTAGE: | |
567 | seq_printf(m, "Battery percentage:\t"); | |
568 | break; | |
569 | case EPOW_SENSOR: | |
570 | seq_printf(m, "EPOW Sensor:\t"); | |
571 | num_states = sizeof(epow_sensor) / sizeof(char *); | |
572 | if (state < num_states) { | |
573 | seq_printf(m, "%s\t", epow_sensor[state]); | |
574 | have_strings = 1; | |
575 | } | |
576 | break; | |
577 | case BATTERY_CYCLESTATE: | |
578 | seq_printf(m, "Battery cyclestate:\t"); | |
579 | num_states = sizeof(battery_cyclestate) / | |
580 | sizeof(char *); | |
581 | if (state < num_states) { | |
582 | seq_printf(m, "%s\t", | |
583 | battery_cyclestate[state]); | |
584 | have_strings = 1; | |
585 | } | |
586 | break; | |
587 | case BATTERY_CHARGING: | |
588 | seq_printf(m, "Battery Charging:\t"); | |
589 | num_states = sizeof(battery_charging) / sizeof(char *); | |
590 | if (state < num_states) { | |
591 | seq_printf(m, "%s\t", | |
592 | battery_charging[state]); | |
593 | have_strings = 1; | |
594 | } | |
595 | break; | |
596 | case IBM_SURVEILLANCE: | |
597 | seq_printf(m, "Surveillance:\t"); | |
598 | break; | |
599 | case IBM_FANRPM: | |
600 | seq_printf(m, "Fan (rpm):\t"); | |
601 | break; | |
602 | case IBM_VOLTAGE: | |
603 | seq_printf(m, "Voltage (mv):\t"); | |
604 | break; | |
605 | case IBM_DRCONNECTOR: | |
606 | seq_printf(m, "DR connector:\t"); | |
607 | num_states = sizeof(ibm_drconnector) / sizeof(char *); | |
608 | if (state < num_states) { | |
609 | seq_printf(m, "%s\t", | |
610 | ibm_drconnector[state]); | |
611 | have_strings = 1; | |
612 | } | |
613 | break; | |
614 | case IBM_POWERSUPPLY: | |
615 | seq_printf(m, "Powersupply:\t"); | |
616 | break; | |
617 | default: | |
618 | seq_printf(m, "Unknown sensor (type %d), ignoring it\n", | |
619 | s->token); | |
620 | unknown = 1; | |
621 | have_strings = 1; | |
622 | break; | |
623 | } | |
624 | if (have_strings == 0) { | |
625 | if (temperature) { | |
626 | seq_printf(m, "%4d /%4d\t", state, cel_to_fahr(state)); | |
627 | } else | |
628 | seq_printf(m, "%10d\t", state); | |
629 | } | |
630 | if (unknown == 0) { | |
631 | seq_printf(m, "%s\t", ppc_rtas_process_error(error)); | |
632 | get_location_code(m, s, loc); | |
633 | } | |
634 | } | |
635 | ||
636 | /* ****************************************************************** */ | |
637 | ||
a7f67bdf | 638 | static void check_location(struct seq_file *m, const char *c) |
1da177e4 LT |
639 | { |
640 | switch (c[0]) { | |
641 | case LOC_PLANAR: | |
642 | seq_printf(m, "Planar #%c", c[1]); | |
643 | break; | |
644 | case LOC_CPU: | |
645 | seq_printf(m, "CPU #%c", c[1]); | |
646 | break; | |
647 | case LOC_FAN: | |
648 | seq_printf(m, "Fan #%c", c[1]); | |
649 | break; | |
650 | case LOC_RACKMOUNTED: | |
651 | seq_printf(m, "Rack #%c", c[1]); | |
652 | break; | |
653 | case LOC_VOLTAGE: | |
654 | seq_printf(m, "Voltage #%c", c[1]); | |
655 | break; | |
656 | case LOC_LCD: | |
657 | seq_printf(m, "LCD #%c", c[1]); | |
658 | break; | |
659 | case '.': | |
660 | seq_printf(m, "- %c", c[1]); | |
661 | break; | |
662 | default: | |
663 | seq_printf(m, "Unknown location"); | |
664 | break; | |
665 | } | |
666 | } | |
667 | ||
668 | ||
669 | /* ****************************************************************** */ | |
670 | /* | |
671 | * Format: | |
672 | * ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ] | |
027dfac6 | 673 | * the '.' may be an abbreviation |
1da177e4 | 674 | */ |
a7f67bdf | 675 | static void check_location_string(struct seq_file *m, const char *c) |
1da177e4 LT |
676 | { |
677 | while (*c) { | |
678 | if (isalpha(*c) || *c == '.') | |
679 | check_location(m, c); | |
680 | else if (*c == '/' || *c == '-') | |
681 | seq_printf(m, " at "); | |
682 | c++; | |
683 | } | |
684 | } | |
685 | ||
686 | ||
687 | /* ****************************************************************** */ | |
688 | ||
a7f67bdf JK |
689 | static void get_location_code(struct seq_file *m, struct individual_sensor *s, |
690 | const char *loc) | |
1da177e4 LT |
691 | { |
692 | if (!loc || !*loc) { | |
693 | seq_printf(m, "---");/* does not have a location */ | |
694 | } else { | |
695 | check_location_string(m, loc); | |
696 | } | |
697 | seq_putc(m, ' '); | |
698 | } | |
699 | /* ****************************************************************** */ | |
700 | /* INDICATORS - Tone Frequency */ | |
701 | /* ****************************************************************** */ | |
702 | static ssize_t ppc_rtas_tone_freq_write(struct file *file, | |
703 | const char __user *buf, size_t count, loff_t *ppos) | |
704 | { | |
2dc20f45 | 705 | u64 freq; |
1da177e4 LT |
706 | int error = parse_number(buf, count, &freq); |
707 | if (error) | |
708 | return error; | |
709 | ||
710 | rtas_tone_frequency = freq; /* save it for later */ | |
08273c9f NL |
711 | error = rtas_call(rtas_function_token(RTAS_FN_SET_INDICATOR), 3, 1, NULL, |
712 | TONE_FREQUENCY, 0, freq); | |
1da177e4 LT |
713 | if (error) |
714 | printk(KERN_WARNING "error: setting tone frequency returned: %s\n", | |
715 | ppc_rtas_process_error(error)); | |
716 | return count; | |
717 | } | |
718 | /* ****************************************************************** */ | |
719 | static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v) | |
720 | { | |
721 | seq_printf(m, "%lu\n", rtas_tone_frequency); | |
722 | return 0; | |
723 | } | |
724 | /* ****************************************************************** */ | |
725 | /* INDICATORS - Tone Volume */ | |
726 | /* ****************************************************************** */ | |
727 | static ssize_t ppc_rtas_tone_volume_write(struct file *file, | |
728 | const char __user *buf, size_t count, loff_t *ppos) | |
729 | { | |
2dc20f45 | 730 | u64 volume; |
1da177e4 LT |
731 | int error = parse_number(buf, count, &volume); |
732 | if (error) | |
733 | return error; | |
734 | ||
735 | if (volume > 100) | |
736 | volume = 100; | |
737 | ||
738 | rtas_tone_volume = volume; /* save it for later */ | |
08273c9f NL |
739 | error = rtas_call(rtas_function_token(RTAS_FN_SET_INDICATOR), 3, 1, NULL, |
740 | TONE_VOLUME, 0, volume); | |
1da177e4 LT |
741 | if (error) |
742 | printk(KERN_WARNING "error: setting tone volume returned: %s\n", | |
743 | ppc_rtas_process_error(error)); | |
744 | return count; | |
745 | } | |
746 | /* ****************************************************************** */ | |
747 | static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v) | |
748 | { | |
749 | seq_printf(m, "%lu\n", rtas_tone_volume); | |
750 | return 0; | |
751 | } | |
752 | ||
c13ff6f3 NL |
753 | /** |
754 | * ppc_rtas_rmo_buf_show() - Describe RTAS-addressable region for user space. | |
644b6025 NL |
755 | * @m: seq_file output target. |
756 | * @v: Unused. | |
c13ff6f3 NL |
757 | * |
758 | * Base + size description of a range of RTAS-addressable memory set | |
759 | * aside for user space to use as work area(s) for certain RTAS | |
760 | * functions. User space accesses this region via /dev/mem. Apart from | |
761 | * security policies, the kernel does not arbitrate or serialize | |
762 | * access to this region, and user space must ensure that concurrent | |
763 | * users do not interfere with each other. | |
764 | */ | |
1da177e4 LT |
765 | static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v) |
766 | { | |
e5d56763 | 767 | seq_printf(m, "%016lx %x\n", rtas_rmo_buf, RTAS_USER_REGION_SIZE); |
1da177e4 LT |
768 | return 0; |
769 | } |